NGC 6357/Pismis 24: Multi-Wavelength Catalog of Young Stars and Disks
Updated 3mo ago
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Description
NASA's catalog provides multi-wavelength photometry for young stellar objects in the Pismis 24 cluster within the NGC 6357 complex. It combines optical, infrared (2MASS, Spitzer), and X-ray (Chandra) observations to study disk evolution and stellar properties. The data includes photometry in 9 bands from 0.55 to 8 microns, a revised distance estimate of 1.7 +/- 0.2 kpc, and a derived median cluster age of 1 Myr.
Use Cases
Study circumstellar disk evolution based on infrared color-color diagrams mentioned in the description
Analyze the impact of stellar encounters and photoevaporation on disk properties in massive clusters
Compare the initial mass function of Pismis 24 with other regions like the Trapezium cluster
Identify and characterize young stellar objects using combined X-ray and infrared data
Strengths
Multi-wavelength data from 9 photometric bands (0.55 to 8 microns) combining VLT, 2MASS, Spitzer, and Chandra observations
Includes a revised distance estimate (1.7 +/- 0.2 kpc) and median age (1 Myr) for the Pismis 24 cluster
Photometry is complemented by optical spectroscopic observations for reliable spectral typing of some members
Limitations
Column-level documentation is absent; field semantics must be inferred after download
Row count is unknown, which may limit suitability assessment
Provenance
Source
National Aeronautics and Space Administration
Collection Method
Observational data from VLT/VIMOS (optical), 2MASS (near-IR), Spitzer IRAC (mid-IR), and Chandra ACIS-I (X-ray), combined for analysis.
Time Range
Observations were performed in 2006 (Spitzer), 2008 (VLT), and previously published Chandra data from 2007.
Freshness
Last updated 2026-03-13 18:59:31.868136; freshness should be verified
Geography
Covers the NGC 6357 star-forming complex, specifically the Pismis 24 cluster.
License is listed as 'other-license-specified'; specific terms must be checked before use.